Q. No.Taylor conducted experiments to prove the semiconservative mode of chromosome replication on:
1.
E. coli
2.
Vinca rosea
3.
Vicia faba
4.
Drosophila melanogaster
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DNA- dependent RNA polymerase catalyzes transcription on the strand of the DNA which is called the
1. Antistrand
2. Template strand
3. Coding strand
4. Alpha strand
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If there are 999 bases in RNA that code for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
| 1. | 1 | 2. | 11 |
| 3. | 33 | 4. | 333 |
DNA fragments are:
1. Positively charged
2. Negatively charged
3. Neutral
4. Either positively or negatively charged depending on their size
During DNA replication, Okazaki fragments are used to elongate the :
1. leading strand towards the replication fork
2. lagging strand towards the replication fork
3. leading strand away from the replication fork
4. lagging strand away from the replication fork
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The final proof for DNA as the genetic material came from the experiments of
1. Griffith
2. Hershey and Chase
3. Avery, Macleod and McCarty
4. Hargobind Khorana
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In prokaryotes:
| 1. | A typical nucleus is not seen and DNA is scattered throughout the cell |
| 2. | A typical nucleus may sometimes be present and DNA is scattered throughout a cell |
| 3. | A typical nucleus is not seen but DNA is not scattered throughout the cell |
| 4. | A typical nucleus may sometimes be present but DNA is not scattered throughout the cell |
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Transcriptionally, active chromatin is termed as:
| 1. | Heterochromatin | 2. | Euchromatin |
| 3. | Prechromatin | 4. | Prochromatin |
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